Lucidworks Search 5.9.9

Released on January 29, 2025, this maintenance release delivers essential security enhancements, including the latest updates for Kafka and key improvements for future-ready protection, plus bug fixes.

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Key highlights

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Enhanced Security and Future-Ready Safeguards

With the Lucidworks Search 5.9.9 release, we’ve upgraded Kafka to version 3.7.0, incorporating the latest security updates to strengthen your platform’s resilience. Additionally, we’ve implemented critical updates for Lucidworks Search’s Webapps, Templating, and API Gateway services, ensuring robust protection for your data. Looking ahead, we’ve introduced enhancements to streamline and expedite the delivery of future security updates, providing you with a safer Lucidworks Search environment.

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Secure deployments with immutable root file system

Fusion now supports a read-only root file system to safeguard against unauthorized modifications, protecting your deployment against malicious software and other attacks. Most services operate efficiently in this mode, and for components that need write access, a separate writable mount is available. Read-only mode is enabled by default for some Lucidworks Search services. See Read-only root file system for a list of services that support it or have it enabled by default. It should only be enabled for services that do not require CRUD access. Contact Lucidworks to customize how read-only root file system access is configured for your Lucidworks Search deployment.

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Bug fixes

• This release improves compatibility between Solr and Lucidworks Search’s LWAI Prediction index pipeline stage to prevent errors about incompatible characters in field names.
• The Lucidworks Search API realm can now authenticate when an API key is passed via an apiKey parameter.
  Previously, the key could only be passed in the header, as in these examples:
  curl -H "x-api-key: API_KEY" "https://EXAMPLE_COMPANY.b.lucidworks.cloud/api/query/status"
  curl -H "apiKey: API_KEY" "https://EXAMPLE_COMPANY.b.lucidworks.cloud/api/query/status"
  
  Now you can also pass the key as a parameter, like this:
  curl https://EXAMPLE_COMPANY.b.lucidworks.cloud/api/query/status?apiKey=API_KEY
  
• The Configurations and ZooKeeper Import/Export APIs are now accessible only to authorized users from within Lucidworks Search.

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Known issues

• Saving large pipelines during high traffic may trigger service instability.
  In some environments, saving large query pipelines while handling high traffic loads can cause the Query service to crash with OOM errors due to thread contention. Lucidworks Search 5.9.14 resolves this issue. If you’re impacted and not yet on this version, contact Lucidworks Support for mitigation options.

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Deprecations

For full details on deprecations, see Deprecations and Removals. As part of our ongoing initiative to replace our V1 (Classic) connectors with our more secure, flexible, and scalable V2 (Plugin) connectors, the following V1 connectors are deprecated in this release:

• Windows Share SMB 2/3 V1
• File Upload V1

Learn more about V1 and V2 connectors. To prepare for the eventual removal of these connectors in a future release, Lucidworks strongly recommends beginning the migration of your datasources to the following V2 connectors:

• Windows Share SMB 2/3 V2
• File Upload V2

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Removals

For more information, see Deprecations and Removals.

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Bitnami removal

By August 28, 2025, Fusion’s Helm chart will reference internally built open-source images instead of Bitnami images due to changes in how they host images.

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Platform Support and Component Versions

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Kubernetes platform support

Lucidworks has tested and validated support for the following Kubernetes platform and versions:

• Google Kubernetes Engine (GKE): 1.28, 1.29, 1.30

For more information on Kubernetes version support, see the Kubernetes support policy.

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Component versions

The following table details the versions of key components that may be critical to deployments and upgrades. More information about support dates can be found at Lucidworks Fusion Product Lifecycle.